It happens on any thread I have on my settings page. I click on the thread to read the new posts and then when I click on my back button to go back to my settings page I get that error. The url when I get the error is http://www.e-cigarette-forum.com/forum/usercp.php but the icon is the old ecf icon. I click on refresh and the new icon shows up and so does the settings page.
Edit: screen shot of the error:
Edit: screen shot of the error:

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